Sometimes it's smelled Ship deserter Sing to the fuzz Sinking ship's evacuee Sneaky person Sailor catches a rodent Singer, in a way Slimeball Skunk Stinker Singer, of a sort See 41-Across Slum sight Singer? Sing Stoolie Snake in the grass Stool pigeon Something often smelled Squealer Subject of many lab tests Scoundrel Singer who doesn't want a hit? Squeal (on) See 30-Down Singer Squeal Subway station sighting Snitch Subway scurrier Stoolie Sneaky sort Snitch Sewer scurrier Sewer sight Slum sight Squeal (on) Snitch (on) See 89-Down Squeal Slum rodent Squeaky Train song? SFO info Snitch Sorority letter Scary urban dweller Stinker Sorority vowel Squeal Ship deserter Spill the beans Scoundrel Snake in the grass Snake in the grass, e.g. Stat on a JFK monitor Snitcher Squeal on your sidekicks Seventh of 24 letters Singer behind prison walls? Slum scurrier Seventh of a 24-letter alphabet Seventh Greek letter Subway station critter SFO posting Stoolie SFO info Start of a drum sound Snake in the grass, metaphorically Sorority letter Sorority vowel Subway vermin Sorority letter SFO guess Seventh Greek letter Symbol used for elasticity in economics Squealer, in slang Sked posting Sewer rodent Seventh Greek letter Scurrying creature Scurrying rodent Snitching mobster Squealer Sewer scurrier Snitch Squealer, in two ways Socratic "H" Seventh Greek letter SFO approx. Sea-Tac datum Snitch Squeal with on Socrates' 'H' Squeal SFO listing Singer? Spill the beans Seventh letter of the Greek alphabet Sorority character Squealer Stoolie SFO posting Ship deserter Seventh in a Greek series Seventh of 24 Stop posting Source of the brachiocephalic trunk Snake in the grass Stool pigeon Singing mobster? Sewer rodent SFO info Sorority vowel Start of a drum sound Sought-after mobster? Symbol of efficiency Subject of a station update, for short SFO posting Seventh letter of the Greek alphabet Seventh of 24 SFO guess SFO listing Sched. info Seventh Greek letter Schedule stat. Symbol for elasticity, in economics Second letter after epsilon SFO stat Sched. number Spanish surname abbr. Sweater letter Seventh Greek letter Subj. of a 'delayed' notice Subj. of a "delayed" notice Spanish Mrs. Sp. woman Sked abbreviation Sked guess Sched. stat Stationmaster's concern Spanish Mrs. Stat on a terminal screen Sweater letter Sp. lady Seventh Greek letter Schedule guess: Abbr. Sked stat Stat announced by a pilot Spanish Mrs. SFO info Span. title Stat that might be affected by traffic Schedule stat Seventh frat chapter Sp. lady Seventh Greek letter Span. address SFO posting Sched. listing Sorority letter Sp. title Slightly cracked Sorority letter Sched. entry Sort of cracked Span. lady Still open Span. title Slightly open Schiphol info: Abbr. Spirit infomation: Abbr. Subj. of an up in the air announcement Sched. approximation Sorority letter Slightly open Sp. woman's title Seventh in a series Spartan letter Sinatra's "Pack" Sneaky person Schedule abbr. Span. title^SR Span, title Seventh letter of the Greek alphabet Socratic vowel Span. address Sp. title Sonora Mrs. Spanish Mrs. Span. title Sp. lady Slightly cracked Slightly gapped Slightly open Sp. title Symbol of viscosity Spanish Mrs. Sinking ship deserter Seventh in a series for Sophocles Squeal Sp. woman Squealer S.A. Mrs. Sp. title Seventh Greek letter Socratic H Standing open slightly Squeal Short of being shut Squealer Seventh Greek letter South American Mrs. Standing open Sp. woman's title ___ Sigma Phi (honor society) Spanish miss: Abbr. Short of shut SAS guess Scab Sewer ___ Singer with a death wish? Splinter, e.g., of the "Teenage Mutant Ninja Turtles" series Senora: Abbr. Shy of being shut Spanish title: Abbr Slightly gapped Señora: Abbr. Stoolie Squeal Symbol used for elasticity in economics See 97 Down. Slightly cracked Spanish housewife: Abbr. Squealer Scoundrel Snitch Slightly open Schedule abbr. Squeal Spanish lady. Spanish title. Spanish wife. See 41 Across. Snitch Squealer Spanish wife Spanish lady: Abbr. Scroundrel Spiller of the proverbial beans Seventh Greek letter.